I try to avoid paid themes, and normally make my own, but there are a couple that I liked so much I was willing to pay. I have to say my favorites are ecruz's HTC Curveslide (83XX) and Blaqk's Clearview (83XX).

I have paid for 3 themes now and have been disappointed in all 3...I definitely won't do that again.

I do have a few themes that were free but that I donated to the developer to make a few changes to my liking. This, in my opinion, is the only way to go. Find free ones, make sure they run smoothly and then ask for any changes you may want and make a donation! If your interested in my favorite donated themes, they are...